RE: [SLUG] Telnet and the Internet

From: Mikes work account (mrock@stewartsigns.com)
Date: Tue Feb 05 2002 - 08:40:59 EST


Excuse this basic question,, just why are we using telnet anyway? Aren't we
supposed to be using ssh?

I understand that will not answer the initial question, but if you use ssh
does the same thing happen? what about rlogin?

Michael C. Rock

-----Original Message-----
From: slug@lists.nks.net [mailto:slug@lists.nks.net]On Behalf Of Bill
Triplett
Sent: Tuesday, February 05, 2002 6:00 AM
To: slug@nks.net
Subject: Re: [SLUG] Telnet and the Internet

On Mon, Feb 04, 2002 at 09:47:27PM -0500, Paul M Foster wrote:
> On Mon, Feb 04, 2002 at 07:53:16PM -0500, Russ Herrold wrote:
>
> > On Mon, 4 Feb 2002, Paul M Foster wrote:
> >
> > > Anyone have any enlightening info?
> >
> > As a BOFH, this is a safe rule to live by: -- 80% of the time,
> > DNS is not doing what you expect.
> >
> > Another gem: tcpdump is your friend -- and it can monitor
> > ppp0
> >
> > As I recall ppp can set debugging up to kdebug 7, and debug 7
> > -- which show everything but the color of your eyebrows, into
> > /var/log/messages
> >
>
> Good, but that doesn't answer the question of why _telnet_ is making
> pppd dial out rather than simply responding itself. (BTW, after pppd
> dials out, telnet responds with a prompt. Go figure.)

Sure, your /etc/hosts file contains mapping for IPv4 addresses, but
probably not for IPv6. As Russ suggested, use tcpdump to see if
queries are originating for AAAA records from the machine you are
telnetting into.

>
> Paul



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